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通过虚功原理对无比钢片柱换算长细比进行了分析,结果表明,现行《钢结构设计规范》(GB50017-2003)关于缀条格构柱换算长细比的计算式适用于无比钢片柱。通过比较无比钢片柱与一般格构式柱的换算长细比,得出了无比钢整体稳定性更好。同时结合工程实例给出了无比钢片柱换算长细比的计算方法,可供工程设计人员在无比钢片柱布置及换算长细比计算时参考。
Based on the principle of virtual work, the slenderness ratio of the incomparable steel column is analyzed. The results show that the calculation formula for the converted slenderness ratio of the patch lattice column in the current “Design Code for Steel Structures” (GB50017-2003) is applicable to unparalleled steel sheets. column. By comparing the converted slenderness ratio of the incomparable steel column with the general lattice column, it is concluded that the overall stability of the steel is better. At the same time, the calculation method of the slenderness ratio of the unconformed steel column is given in combination with an engineering example, which can be used by engineering designers in the calculation of the unparalleled steel column arrangement and the converted slenderness ratio.